Nfpa 70e Questions and Verified
Solutions 100% Correct Already Graded
A+
Three main electrical hazards working on energized circuit - Answer: Shock, fire, arc
What is an arc flash? - Answer: A type of electrical explosion or discharge that results from low
impedance connection through air to ground or another phase.
What is an arc blast? - Answer: The explosive burst of energy that occurs during an arc flash.
What determines the effects of shock on the body? - Answer: Time, path, amount of current
What is the onset of second-degree burn - Answer: 1.2 cal/cm^2
How is FR clothing related - Answer: Arc Thermal Protect Value
What are two field methods of testing dielectric gloves? - Answer: Roll up method and glove inflator
How often do rubber gloves need to be sent to be dielectrically tested? - Answer: Before first issue and
every six months there after
All testing equipment must be ___________ for the circuit and equipment to be tested - Answer: Rated
Name the three shock protection boundaries - Answer: Limited approach,
restricted approach,
arc flash boundary
What is the basis for selecting rubber insulated gloves - Answer: Voltage rating on label & color
Solutions 100% Correct Already Graded
A+
Three main electrical hazards working on energized circuit - Answer: Shock, fire, arc
What is an arc flash? - Answer: A type of electrical explosion or discharge that results from low
impedance connection through air to ground or another phase.
What is an arc blast? - Answer: The explosive burst of energy that occurs during an arc flash.
What determines the effects of shock on the body? - Answer: Time, path, amount of current
What is the onset of second-degree burn - Answer: 1.2 cal/cm^2
How is FR clothing related - Answer: Arc Thermal Protect Value
What are two field methods of testing dielectric gloves? - Answer: Roll up method and glove inflator
How often do rubber gloves need to be sent to be dielectrically tested? - Answer: Before first issue and
every six months there after
All testing equipment must be ___________ for the circuit and equipment to be tested - Answer: Rated
Name the three shock protection boundaries - Answer: Limited approach,
restricted approach,
arc flash boundary
What is the basis for selecting rubber insulated gloves - Answer: Voltage rating on label & color
